On one side of this third piece of paper I myself write with this mercurous nitrate solution.
The fumes of ammonia have formed the precipitate of black mercurous nitrate, a very distinct black writing which is almost indelible.
The iodid and mercury were in proportions comparable to mercurous iodid.
The nitric acid solution is boiled to oxidize all mercurous nitrate to mercuric nitrate.
Both qualitative and quantitative data showed that the mercury was present in the form of mercurous iodid (yellow iodid of mercury--hydrargyri iodidum flavum).
Thus each tablet of “Syphilodol” contains approximately, 3/4 grain of mercurous iodid.
Chemical Laboratory proved one form of this asserted French discovery to be essentially a pill of mercurous iodid.
The necessary amounts of Lithium andMercurous Chloride are then intimately mixed and made into solution.
All these reactions are typical of mercurous iodid--yellow iodid of mercury.
Mercurous nitrate gives at once with HCN solutions, a black deposit of metallic mercury, and a solution of mercuric cyanide.
The precipitate is allowed to settle for some time, filtered, and washed with a dilute solution ofmercurous nitrate.
The solution containing the molybdate is neutralised and treated with an excess ofmercurous nitrate.
Mercurous salts are generally insoluble, and may be converted into mercuric salts by prolonged boiling with oxidising agents (nitric acid or aqua regia).
Mercury forms two series of salts, mercurous and mercuric, but for the purposes of the assayer the most important property is the ease with which it can be reduced to the metallic state from either of these.
In this case it is best to take paper moistened with mercurous nitrate, HgNO{3}.
This paper turns black in the presence of ammonia, owing to the formation of a black compound of ammonia with mercurous oxide.
Precipitate a solution of mercurous nitrate by another of mercurous potassium iodide; wash the precipitate, first in a solution of sodium chloride, and then in pure water; lastly, dry it in the shade.
By dropping weak ammonia into a solution of mercurous nitrate as long as the precipitate formed is of a black colour; the powder is washed, dried in the shade without artificial heat, and then preserved from the light and air.
For the last purpose it is inferior to mercurous oxide, owing to the more irritating nature of its vapour.
As a medicine pure mercurous oxide is one of the mildest of the mercurials, and is used both internally and externally; but chiefly as a fumigant, or made into an ointment.
By adding sulphuric acid to a solution of mercurous nitrate.
On contact with the latter substance it is instantly converted into ferrous chloride and mercurous sulphide, two comparatively inert substances.
The mercurous oxide which is first formed at the expense of the oxygen contained in the tetroxide of osmium is decomposed by the hydrochloric acid, and calomel is produced, together with metallic osmium.
If this salt is detected, the salt examined contained mercuric nitrate, and if any basic mercurous nitrate was present, the newly formed calomel has a grey or black colour, due to presence of oxide.
Calomel, or the white precipitate formed by the mercurous salt, with hydrochloric acid and the soluble chlorides, is soluble in excess of the precipitant, and is not only insoluble in liquor of ammonia, but is immediately blackened by it.
By precipitating a solution of mercurous nitrate by another of potassium bromide.
With mercurous nitrate, the platinocyanide of potassium forms a thick smalt blue, and the platinidcyanide a dark blue precipitate.
The compound is a mixture of platino- or platinidcyanide of mercury and mercurous nitrate.
A blue containing mercurous nitrate must necessarily be injured by impure air, and be otherwise objectionable.
It is destroyed by impure air, and on exposure to sunshine gradually turns black, being superficially decomposed into oxygen and metallic mercury or mercurous oxide.
For instance, the addition of hydrochloric acid to a solution of lead, mercurous or silver nitrate will produce a white precipitate.
It is manufactured by heating a mixture of mercurous sulphate and common salt in iron retorts, and condensing the sublimed calomel in brick chambers.
The specific value of mercurous chloride is that it exerts the valuable properties of mercuric chloride in the safest and least irritant manner, as the active salt is continuously and freshly generated in small quantities.
Boiling with stannous chloride solution reduces it to the metal; digestion with potassium iodide gives mercurous iodide.
In the wet way it is obtained by precipitating a mercurous salt with hydrochloric acid.
Having thoroughly triturated the mild mercurous chloride with the sugar, add the carmine and the spirit of rose; and triturate again until the pink color is perfectly uniform.
Having thoroughly triturated the yellow mercurous iodide with the sugar, add the spirit of peppermint and triturate again.
Now, several substances will color this white mercurous chloride black.
For this purpose the cold solution is treated with hydrochloric acid, which precipitates lead, silver and mercurous salts as chlorides.
To the solution is added mercurous nitrate, which precipitates the yellowmercurous silico-tungstate.
Acetate of Mercury= (=Mercurous acetate=) is not contained in the B.
Sugar of lead and nitrate of silver each give a white precipitate; and mercurous and mercuric nitrates white and yellow precipitates.
There are several of these processes, some adapted more particularly for mercuric, and others for mercurous compounds.
Flueckiger[456] has proposed as a test mercurous nitrate, in aqueous solution with a little free nitric acid.
Mercurous Salts= may be titrated with great accuracy by a decinormal solution of sodic chloride.
Mercurous Salts= in solution yield, with potash, soda, or lime, a black precipitate of mercurous oxide.
The principle of the method is based upon the fact that guanidine is precipitated by mercurous oxide.
Each troche contains santonin and mild mercurous chloride (each 0.
Each pill contains sulphurated antimony and mild mercurous chloride (each 0.
A suspension ofmercurous oxide, Hg{2}O, produced by the action of lime water on mild mercurous chloride.
The fumes of ammonia have formed the precipitate of black, mercurous nitrate, a very distinct black writing which is almost indelible.
Note 3: The solution should be allowed to stand about three minutes after the addition of mercuric chloride to permit the complete deposition of mercurous chloride.
Silver chloride, lead chloride, and mercurous chloride are insoluble in water and acids, and can be prepared by adding hydrochloric acid to solutions of compounds of the respective elements.
How could you distinguish between mercurous chloride and mercuric chloride?
If a solution of potassium iodide is added to solutions of a mercurous and a mercuric salt respectively, the corresponding iodides are precipitated.
Like mercurous chloride it is a white solid, but differs from it in that it is soluble in water.
Most mercurous salts are insoluble in water, the principal soluble one being the nitrate, which is made by the action of cold, dilute nitric acid on mercury.
All chlorides are soluble save silver and mercurous chlorides.
Silver forms two oxides but only one series of salts, namely, the one which corresponds to the mercurous and cuprous series.
Write equations for the preparation of mercuric and mercurous iodides.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "mercurous" in a variety of sentences. We hope that you will now be able to make sentences using this word.
